Use Megapoxy 254 for: bonding precast concrete, metal, stone, and repairs to concrete, fiberglass, and more.
Megapoxy 254 is a specially formulated, non-sag epoxy filling and adhesive paste designed for a wide range of applications. This two-part epoxy system, with a simple 1:1 mixing ratio, sets after mixing to provide excellent properties. It is VOC-free, ensuring a safer application. Megapoxy 254 will not stain or discolor white or light-colored marble and ceramics when properly mixed.
Key Features of Megapoxy 254
- Simple 1:1 mixing ratio by volume.
- Non-sag formulation for vertical and overhead applications.
- VOC-free.
- Adheres and cures under adverse conditions (cold and damp).
- High strength permanent bonds.
- Excellent tensile and compressive strengths.
- Excellent chemical resistance.
- Flash point above 200°C.
Recommended Applications
-
Bonding: Precast concrete, metal to metal or concrete, grouting bolts, natural stones, bricks and ceramics, compressed cement sheet.
-
Filling and Repair: Concrete pipes and tanks, fiberglass articles, concrete floors and stairs, concrete columns, in-situ formed concrete, flush-filling countersunk screws in fiber cement sheet.
Technical Overview
-
Mixing Ratio: 1 Part A to 1 Part B by volume.
-
Work Time at 25°C: 45 minutes.
-
Minimum Cure Time at 15°C: 48 hours.
-
Minimum Cure Time at 25°C: 24 hours.
-
Minimum Cure Time at 35°C: 12 hours.
-
Minimum Application Temperature: 10°C.
-
Maximum Operating Temperature: 70°C.
-
Colour: White (Part A & Part B, mixed).
Cured Properties
-
Compressive Strength (ASTM D695-23): 70 MPa.
-
Bond Strength Concrete (ASTM 4541): >3 MPa.
-
Tensile Bond Strength Steel (ASTM D897-08): 20 MPa.
-
Modulus of Elasticity (ASTM D695): 2 GPa.
-
Flexural Strength (ASTM D790-17): 38 MPa.
-
Tensile Strength (ASTM D638-22): 22 MPa.
-
Tensile Shear Strength (ASTM D1002-10): 13 MPa.
-
Hardness (Shore D, ASTM D2240-00): 70.
-
Coefficient of Linear Thermal Expansion: 70.4 x 10^-6 (mm/mm/°C).
-
Dielectric Strength (50Hz @25°C): 190 Kv/cm.
Surface Preparation
-
Concrete: Clean, remove laitance (mechanical abrasion or acid etching), dry for 24 hours.
-
Metal Surfaces: Grit blast to AS CK 9.4 - 1964 Class 3, or mechanically abrade and degrease.
-
Coated Surfaces: Remove coatings (flame cleaning, mechanical treatment, paint stripper, grit blasting).
Trade Professional Information
-
Required Tools: Mixing containers, trowel, gloves, safety glasses.
-
Trade-Specific Tips: Ensure accurate 1:1 mixing ratio and thorough mixing. Prepare surfaces properly. Clean tools with Megapoxy Thinners.
-
Common Issues and Solutions: Incomplete curing (proper mixing), poor adhesion (surface preparation), discoloration (thorough mixing).
Storage and Shelf Life
-
Storage Requirements: Store in a cool, dry place.
-
Shelf Life Information: Refer to packaging.
